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[escepticos] Mas sobre el sudario de Turín



El Dr. Walter C. McCrone fue el que probó con microanálisis forense que el
sudario de Turín es del siglo XIV. Pero no sólo eso, tampoco hay rastros de
sangre.(ni AB como se dice en el art. del de Oviedo, ni nada). Dichos
"redescubrimientos" fraudulentos (respecto del de Turín) están destacados en
el artículo del CSICOP que cité en otro mail .En realidad es una pintura
medieval (datada por  C-14 en 1325 y por análisis microscópico en 1355). Y
dice allí:
 Conclusion: The "Shroud" is a beautiful painting created about 1355 for a
new church in need of a pilgrim-attracting relic.

El Dr Mc Crone falleció en julio del año pasado y Joe Nickell realizó el
obituario para el SI."In 1960 he founded his complementary organization, the
McCrone Research Institute, which would eventually teach more than 20,000
"students," including forensic analysts from the FBI and other crime
laboratories."
Nickell nos cuenta que Mc Crone descubrió del análisis de un mechón de
cabello de Beethoven que éste murió por envenenamiento con plomo, probó que
Napoleón NO fue envenenado con arsénico como se creía y descubrió que el
mapa de Vinlandia- propuesto para demostrar que Leif Ericson había visitado
América 5 siglos antes de Colón - poseía trazas de un pigmento que no se
sintetizó sino hasta 1920 (anatase en inglés).
Reproduzco abajo el artículo sobre el sudario de Turín en inglés, del
RESEARCH AT McCRONE RESEARCH INSTITUTE de Chicago. En
http://web.archive.org/web/20010408080358/www.mcri.org/Shroud.html
Saludos
carolus magnus
----------------------

According to Dr. Walter McCrone and his colleagues at McCrone Associates,
the 3+ by 14+ foot cloth depicting Christ's crucified body is an inspired
painting produced by a Medieval artist just before its first appearance in
recorded history in 1356. The faint sepia image is made up of billions of
submicron pigment particles (red ochre and vermilion) in a collagen tempera
medium. Dr. McCrone determined this by polarized light microscopy in 1979.
This included careful inspection of thousands of linen fibers from 32
different areas (Shroud and sample points), characterization of the only
colored image-forming particles by color, refractive indices, polarized
light microscopy, size, shape, and microchemical tests for iron, mercury,
and body fluids. The paint pigments were dispersed in a collagen tempera
(produced in medieval times, perhaps, from parchment). It is chemically
distinctly different in composition from blood but readily detected and
identified microscopically by microchemical staining reactions. Forensic
tests for blood were uniformly negative on fibers from the blood-image
tapes.
There is no blood in any image area, only red ochre and vermilion in a
collagen tempera medium. The red ochre is present on 20 of both body- and
blood-image tapes; the vermilion only on 11 blood-image tapes. Both pigments
are absent on the 12 non-image tape fibers.
The Electron Optics Group at McCrone Associates (John Gavrilovic, Anna
Teetsov, Mark Andersen, Ralph Hinsch, Howard Humecki, Betty Majewski, and
Deborah Piper) in 1980 used electron and x-ray diffraction and found red
ochre (iron oxide, hematite) and vermilion (mercuric sulfide); their
electron microprobe analyzer found iron, mercury, and sulfur on a dozen of
the blood-image area samples. The results fully confirmed Dr. McCrone's
results and further proved the image was painted twice-once with red ochre,
followed by vermilion to enhance the blood-image areas.
The carbon-dating results from three different internationally known
laboratories agreed well with his date: 1355 by microscopy and 1325 by C-14
dating. The suggestion that the 1532 Chambery fire changed the date of the
cloth is ludicrous. Samples for C-dating are routinely and completely burned
to CO2 as part of a well-tested purification procedure. The suggestions that
modern biological contaminants were sufficient to modernize the date are
also ridiculous. A weight of 20th century carbon equaling nearly two times
the weight of the Shroud carbon itself would be required to change a 1st
century date to the 14th century (see Carbon 14 graph). Besides this, the
linen cloth samples were very carefully cleaned before analysis at each of
the C-dating laboratories.
Experimental details on the tests carried out at McCrone Associates or the
McCrone Research Institute are available in five papers published in three
different peer-reviewed journal articles: Microscope 1980, 28, 105, 115;
1981, 29, 19; Wiener Berichte uber Naturwissenschaft in der Kunst 1987/1988,
4/5, 50 and Acc. Chem. Res. 1990, 23, 77-83.
Conclusion:
The "Shroud" is a beautiful painting created about 1355 for a new church in
need of a pilgrim-attracting relic.